WO2019216524A1 - Procédé de mise à jour d'informations de ladn dans un système de communication sans fil et appareil associé - Google Patents

Procédé de mise à jour d'informations de ladn dans un système de communication sans fil et appareil associé Download PDF

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Publication number
WO2019216524A1
WO2019216524A1 PCT/KR2019/001301 KR2019001301W WO2019216524A1 WO 2019216524 A1 WO2019216524 A1 WO 2019216524A1 KR 2019001301 W KR2019001301 W KR 2019001301W WO 2019216524 A1 WO2019216524 A1 WO 2019216524A1
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WIPO (PCT)
Prior art keywords
ladn
information
amf
service
terminal
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PCT/KR2019/001301
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English (en)
Korean (ko)
Inventor
김현숙
김래영
류진숙
윤명준
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LG Electronics Inc
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LG Electronics Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

Definitions

  • the present invention relates to a wireless communication system, and more particularly, to a method and apparatus for updating LADN service information of a terminal.
  • Mobile communication systems have been developed to provide voice services while ensuring user activity.
  • the mobile communication system has expanded not only voice but also data service.As a result of the explosive increase in traffic, a shortage of resources and users are demanding higher speed services, a more advanced mobile communication system is required. have.
  • LADN information is previously set in the AMF providing the LADN service. That is, the service provider may set / update information about the LADN service in the AMF through OAM.
  • this configuration / update method is not suitable in scenarios in which a very large number of LADN services are provided, particularly in a scenario in which services are dynamically set or changed.
  • the operator's OAM scheme has a high possibility of unpredictable failure, it is necessary to change the setting of the LADN information according to a previously coordinated and defined mechanism.
  • an object of the present invention is to propose a method for efficiently / flexibly updating LADN information of a terminal.
  • a method of updating local access data network (LADN) information of a terminal in a wireless communication system comprising: displaying a setting screen for setting whether to permit access of the terminal to a LADN service; Receiving a setting regarding whether to allow access to the LADN service through the setting screen, and storing the input setting; Receiving LADN information for the LADN service, wherein the LADN information includes LADN service area information and LADN data network name (DNN) information; Receiving updated LADN information from an access and mobility management function (AMF) when an update occurs in the LADN information, wherein the updated LADN information includes updated LADN service area information and updated LADN data network name.
  • LADN local access data network
  • PDU packet data unit
  • the stored setting indicates the access permission to the LADN service, and / or the location of the terminal is located inside the LADN service area included in the updated LADN service area information. ) May be the case.
  • the stored setting does not indicate the access permission to the LADN service, and / or the LADN service area in which the location of the terminal is included in the updated LADN service area information. This may be the case outside.
  • the updated LADN information may be transmitted to the terminal through a registration procedure or a user equipment (UE) configuration update procedure.
  • UE user equipment
  • an AMF located within the updated LADN service area may be selected as the AMF.
  • the AMF may be selected by a policy control function (PCF), and the updated LADN information may be received from the PCF.
  • PCF policy control function
  • the PCF may be a network node that receives information on the area providing range of the LADN service and / or information on providing time of the LADN service from a network exposure function (NEF) and / or a data network (DN) / AF (application function). Can be.
  • NEF network exposure function
  • DN data network
  • AF application function
  • the LADN information updating method may further include: when the establishment of the PDU session is determined, establishing the PDU session based on the updated LADN information and receiving the LADN service through the established PDU session; It may further include.
  • the LADN information updating method may further include displaying an indicator indicating that the terminal is currently accessing the LADN service when the LADN service is received; It may further include.
  • the indicator may correspond to an icon, a notification window, a message, and / or a pop-up window of a predefined state, color, and / or shape to indicate that the LADN service is being accessed.
  • the indicator may be displayed in the status bar to inform the user of the current setting status of the terminal.
  • the AMF may be selected in consideration of the LADN service providing area range and / or the serving AMF of the terminal in addition to the updated LADN service area information.
  • an AMF located within the updated LADN service area and the LADN service providing area range may be selected.
  • the serving AMF and at least one AMF logically associated with the serving AMF may be selected.
  • the LADN information updating method may further include receiving information indicating release or deactivation of the established PDU session from the session management function (SMF) through the AMF; It may further include.
  • SMF session management function
  • the information indicating the release or the deactivation of the established PDU session may be delivered to the terminal through a Non-Access Stratum (NAS) message or a Radio Resource Control (RRC) message.
  • NAS Non-Access Stratum
  • RRC Radio Resource Control
  • the information indicating the release or deactivation of the established PDU session may include information on the reason (cause) that the established PDU session is released or deactivated.
  • LADN Local Access Data Network
  • a wireless communication system comprising: a communication module for transmitting and receiving a signal; A display unit for displaying a screen; A memory for storing data; A processor controlling the communication module, the display unit, and the memory; The processor may include a setting screen for setting whether to allow the terminal to access the LADN service on the display unit, and inputs a setting regarding whether to allow access to the LADN service through the setting screen.
  • DNN LADN data network name
  • the updated LADN information is received from an access and mobility management function (AMF), wherein the updated LADN information includes updated LADN service area information and updated LADN data network name (DNN) information.
  • PDU for receiving LADN service for the terminal based on the stored configuration and / or the updated LADN information ket Data Unit) is determined whether to establish a session (establish), the AMF may be determined based on the updated LADN service area.
  • the stored setting indicates the access permission to the LADN service, and / or the location of the terminal is located inside the LADN service area included in the updated LADN service area information. ) May be the case.
  • the stored setting does not indicate the access permission to the LADN service, and / or the LADN service area in which the location of the terminal is included in the updated LADN service area information. This may be the case outside.
  • the LADN service information of the terminal is flexibly / dynamically updated in real time, the effect that the LADN service can be provided to the terminal / user more efficiently / accurately occurs.
  • FIG. 1 illustrates a 5G system architecture using a reference point representation.
  • FIG. 2 is a diagram illustrating a wireless protocol stack to which the present invention can be applied.
  • FIG. 3 is a diagram illustrating a method of providing LADN information according to an embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a method of operating AMF for reporting whether a UE is located in a LADN service area according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating an AMF operation method for determining whether a UE is located in an area of interest according to an embodiment of the present invention.
  • FIG. 6 illustrates a problem scenario in which the present invention may be applied.
  • FIG. 8 is a flowchart illustrating a dynamic / flexible update method of LADN information according to an embodiment of the present invention.
  • 9 is a diagram illustrating the interaction between the UE and the SMF when the SMF decides to release the LADN PDU session.
  • FIG. 10 is a diagram illustrating an interaction between the UE and the SMF when the SMF decides to deactivate a LADN PDU session.
  • FIG. 11 illustrates a display screen of the terminal.
  • 16 and 17 illustrate screens of a display unit of a mobile terminal.
  • FIG. 18 is a flowchart illustrating a method of updating LADN information of a terminal according to an embodiment of the present invention.
  • FIG. 19 is a block diagram of a terminal for updating LADN information according to an embodiment of the present invention.
  • FIG. 20 illustrates a block diagram of a communication device according to an embodiment of the present invention.
  • FIG. 21 illustrates a block diagram of a communication device according to an embodiment of the present invention.
  • 22 is a block diagram illustrating a mobile terminal according to the present invention.
  • a base station has a meaning as a terminal node of a network that directly communicates with a terminal.
  • the specific operation described as performed by the base station in this document may be performed by an upper node of the base station in some cases. That is, it is obvious that various operations performed for communication with a terminal in a network composed of a plurality of network nodes including a base station may be performed by the base station or other network nodes other than the base station.
  • a 'base station (BS)' may be replaced by terms such as a fixed station, a Node B, an evolved-NodeB (eNB), a base transceiver system (BTS), an access point (AP), and the like. .
  • a 'terminal' may be fixed or mobile, and may include a user equipment (UE), a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), and an AMS ( Advanced Mobile Station (WT), Wireless Terminal (WT), Machine-Type Communication (MTC) Device, Machine-to-Machine (M2M) Device, Device-to-Device (D2D) Device, etc.
  • UE user equipment
  • MS mobile station
  • UT user terminal
  • MSS mobile subscriber station
  • SS subscriber station
  • AMS Advanced Mobile Station
  • WT Wireless Terminal
  • MTC Machine-Type Communication
  • M2M Machine-to-Machine
  • D2D Device-to-Device
  • downlink means communication from a base station to a terminal
  • uplink means communication from a terminal to a base station.
  • a transmitter may be part of a base station, and a receiver may be part of a terminal.
  • a transmitter may be part of a terminal and a receiver may be part of a base station.
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • EDGE enhanced data rates for GSM evolution
  • OFDMA may be implemented in a wireless technology such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, evolved UTRA (E-UTRA).
  • UTRA is part of a universal mobile telecommunications system (UMTS).
  • 3rd generation partnership project (3GPP) long term evolution (LTE) is a part of evolved UMTS (E-UMTS) using E-UTRA, and employs OFDMA in downlink and SC-FDMA in uplink.
  • LTE-A (advanced) is the evolution of 3GPP LTE.
  • Embodiments of the present invention may be supported by standard documents disclosed in at least one of the wireless access systems IEEE 802, 3GPP and 3GPP2. That is, steps or parts which are not described to clearly reveal the technical spirit of the present invention among the embodiments of the present invention may be supported by the above documents. In addition, all terms disclosed in the present document can be described by the above standard document.
  • UMTS Universal Mobile Telecommunications System
  • GSM Global System for Mobile Communication
  • Evolved Packet System A network system consisting of an Evolved Packet Core (EPC), which is a packet switched core network based on Internet Protocol (IP), and an access network such as LTE and UTRAN.
  • EPC Evolved Packet Core
  • IP Internet Protocol
  • UMTS is an evolutionary network.
  • NodeB base station of UMTS network. It is installed outdoors and its coverage is macro cell size.
  • eNodeB base station of EPS network. It is installed outdoors and its coverage is macro cell size.
  • -Home NodeB Base station of UMTS network installed indoors, coverage of micro cell size
  • Base station of EPS network installed indoors and coverage is micro cell size
  • a terminal may be referred to in terms of terminal, mobile equipment (ME), mobile station (MS), and the like.
  • the terminal may be a portable device such as a laptop, a mobile phone, a personal digital assistant (PDA), a smartphone, a multimedia device, or the like, or may be a non-portable device such as a personal computer (PC) or a vehicle-mounted device.
  • the term "terminal” or “terminal” in the MTC related content may refer to an MTC terminal.
  • Machine Type Communication Communication performed by a machine without human intervention. It may also be referred to as M2M (Machine to Machine) communication.
  • MTC terminal MTC UE or MTC device or MTC device: a terminal (eg, vending machine, etc.) having a function of communicating via a mobile communication network (for example, communicating with an MTC server via a PLMN) and performing an MTC function; Meter reading, etc.).
  • MTC UE or MTC device or MTC device a terminal having a function of communicating via a mobile communication network (for example, communicating with an MTC server via a PLMN) and performing an MTC function; Meter reading, etc.).
  • RAN Radio Access Network: a unit including a Node B, a Radio Network Controller (RNC), and an eNodeB controlling the Node B in a 3GPP network. It exists at the terminal end and provides connection to the core network.
  • RNC Radio Network Controller
  • HLR Home Location Register
  • HSS Home Subscriber Server
  • PLMN Public Land Mobile Network
  • Non-Access Stratum A functional layer for transmitting and receiving signaling and traffic messages between a terminal and a core network in a UMTS and EPS protocol stack. The main function is to support the mobility of the terminal and to support the session management procedure for establishing and maintaining an IP connection between the terminal and the PDN GW.
  • SEF Service Capability Exposure Function
  • Mobility Management Entity A network node of an EPS network that performs mobility management and session management functions.
  • -PDN-GW Packet Data Network Gateway
  • Network node of EPS network that performs UE IP address allocation, packet screening and filtering, charging data collection
  • Serving GW A network node of an EPS network that performs mobility anchor, packet routing, Idle mode packet buffering, and triggers paging for a UE of an MME.
  • -PCRF Policy and Charging Rule Function
  • PDN Packet Data Network
  • servers eg, MMS server, WAP server, etc.
  • connection from the terminal to the PDN that is, association (connection) of the terminal represented by the IP address with the PDN represented by the APN
  • the 5G system is an advanced technology from the 4th generation LTE mobile communication technology, and is a new radio access technology (RAT) and long-term LTE (Lvolution) through the evolution or clean-state structure of the existing mobile communication network structure.
  • Term Evolution (Extended LTE) technology supports extended LTE (eLTE), non-3GPP (eg WLAN) access, and the like.
  • the 5G system is defined as service-based, and the interaction between network functions (NF) in the architecture for the 5G system can be expressed in two ways as follows.
  • NF network functions
  • Reference Point Representation The interaction between NF services in NFs described by a point-to-point reference point (eg N11) between two NFs (eg AMF and SMF). Indicates.
  • Network functions eg AMF
  • CP Control Plane
  • FIG. 1 illustrates a 5G system architecture using a reference point representation.
  • the 5G system architecture may include various components (ie, a network function (NF)), and in this figure, some of them correspond to an authentication server function (AUSF). Function), Access and Mobility Management Function (AMF), Session Management Function (SMF), Policy Control Function (PCF), Application Function (AF) ), Unified Data Management (UDM), Data Network (DN), User Plane Function (UPF), (Wireless) Access Network ((R) AN: (Radio) Access Network ) Illustrates a user equipment (UE).
  • AUSF authentication server function
  • Each NF supports the following functions.
  • AUSF stores data for authentication of the UE.
  • AMF provides a function for UE-level access and mobility management and can be connected to one AMF basically per UE.
  • AMF includes CN inter-node signaling for mobility between 3GPP access networks, termination of Radio Access Network (RAN) CP interface (ie, N2 interface), termination of NAS signaling (N1), NAS signaling security (NAS ciphering and integrity protection), AS security control, registration management (registration area management), connection management, idle mode UE reachability (control of paging retransmission and Mobility management controls (subscription and policy), intra-system mobility and inter-system mobility support, network slicing support, SMF selection, Lawful Intercept (AMF events and LI systems) Interface), providing delivery of session management (SM) messages between the UE and the SMF, transparent proxy for routing SM messages, access Access Authentication, access authorization including roaming authorization checks, delivery of SMS messages between the UE and the Short Message Service (SMSF) function, Security Anchor Function (SEA) and / or It supports functions such as Security Context Management (SCM).
  • RAN Radio Access Network
  • N1 termination of NAS signaling
  • NAS ciphering and integrity protection
  • AMF Access Management Function
  • the DN means, for example, an operator service, an Internet connection, or a third party service.
  • the DN transmits a downlink protocol data unit (PDU) to the UPF or receives a PDU transmitted from the UE from the UPF.
  • PDU downlink protocol data unit
  • PCF receives the packet flow information from the application server and provides the function to determine the policy of mobility management, session management, etc.
  • PCF supports a unified policy framework for controlling network behavior, providing policy rules for CP function (s) (eg, AMF, SMF, etc.) to enforce policy rules, and user data store (UDR).
  • policy rules for CP function (s) (eg, AMF, SMF, etc.) to enforce policy rules, and user data store (UDR).
  • UDR user data store
  • the SMF provides a session management function, and when the UE has a plurality of sessions, the SMF can be managed by different SMFs for each session.
  • the SMF is responsible for session management (eg, establishing, modifying, and tearing down sessions, including maintaining tunnels between UPF and AN nodes), assigning and managing UE IP addresses (optionally including authentication), and selecting UP functionality. And control, setting traffic steering to route traffic to the appropriate destination in the UPF, terminating the interface towards policy control functions, enforcing the control portion of policy and QoS, and lawful intercept ( For SM events and interfaces to the LI system), termination of the SM portion of NAS messages, downlink data notification, initiator of AN specific SM information (delivered to the AN via N2 via AMF), It supports functions such as determining the SSC mode of the session and roaming functions.
  • session management eg, establishing, modifying, and tearing down sessions, including maintaining tunnels between UPF and AN nodes
  • assigning and managing UE IP addresses optionally including authentication
  • selecting UP functionality e.g., setting traffic steering to route traffic to the appropriate destination in the UPF, terminating the interface towards policy
  • Some or all functions of an SMF may be supported within a single instance of one SMF.
  • UDM stores user subscription data, policy data, etc.
  • the UDM includes two parts: an application front end (FE) and a user data repository (UDR).
  • FE application front end
  • UDR user data repository
  • the FE includes a UDM FE responsible for location management, subscription management, credential processing, and the PCF responsible for policy control.
  • the UDR stores the data required for the functions provided by the UDM-FE and the policy profile required by the PCF.
  • Data stored in the UDR includes user subscription data and policy data, including subscription identifiers, security credentials, access and mobility related subscription data, and session related subscription data.
  • UDM-FE accesses subscription information stored in the UDR and supports features such as Authentication Credential Processing, User Identification Handling, Access Authentication, Registration / Mobility Management, Subscription Management, and SMS Management. do.
  • the UPF delivers the downlink PDU received from the DN to the UE via the (R) AN and the uplink PDU received from the UE via the (R) AN to the DN.
  • the UPF includes anchor points for intra / inter RAT mobility, external PDU session points of the interconnect to the Data Network, packet routing and forwarding, packet inspection and User plane part of policy rule enforcement, lawful intercept, traffic usage reporting, uplink classifier and multi-homed PDU sessions to support routing of traffic flow to data network.
  • Branching point to support, QoS handling for user plane e.g. packet filtering, gating, uplink / downlink rate enforcement), uplink traffic verification (service data flow (SDF) : SDF mapping between service data flow and QoS flow), uplink and downlink transport level packet marking, downlink packet buffering and downlink data notification Functions such as triggering function are supported.
  • Some or all of the functions of the UPF may be supported within a single instance of one UPF.
  • AF interacts with the 3GPP core network to provide services (e.g. application impact on traffic routing, access to Network Capability Exposure, and interaction with policy frameworks for policy control). It works.
  • -(R) AN is a new radio that supports both evolved E-UTRA (e-UTRA) and New Radio (NR) (e.g. gNB), an evolution of the 4G radio access technology. Collectively, the access network.
  • e-UTRA evolved E-UTRA
  • NR New Radio
  • the network node responsible for transmitting and receiving radio signals with the terminal is gNB and performs the same role as an eNB in EPS.
  • the gNB is capable of dynamic resource allocation to the UE in functions for radio resource management (ie, radio bearer control, radio admission control, connection mobility control, uplink / downlink). Dynamic allocation of resources (i.e., scheduling), IP (Internet Protocol) header compression, encryption and integrity protection of user data streams, and routing from the information provided to the UE to the AMF is not determined.
  • radio resource management ie, radio bearer control, radio admission control, connection mobility control, uplink / downlink.
  • Dynamic allocation of resources i.e., scheduling
  • IP (Internet Protocol) header compression i.e., IP (Internet Protocol) header compression
  • encryption and integrity protection of user data streams i.e., encryption and integrity protection of user data streams
  • AMF Access Management Function
  • UE plane data routing to UPF s
  • control plane information routing to AMF connection setup and release
  • scheduling and transmission of paging messages from AMF
  • system broadcast Scheduling and transmission of cast information from AMF or O & M
  • measurement and measurement reporting setup for mobility and scheduling upstream Transport level packet marking on the link
  • session management support for network slicing
  • QoS flow management and mapping to data radio bearers support for UEs in inactive mode
  • NAS messages Features such as network distribution, NAS node selection, radio access network sharing, dual connectivity, and tight interworking between NR and E-UTRA.
  • the UE means user equipment.
  • the user device may be referred to in terms of terminal, mobile equipment (ME), mobile station (MS), and the like.
  • the user device may be a portable device such as a laptop, a mobile phone, a personal digital assistant (PDA), a smartphone, a multimedia device, or the like, or may be a non-portable device such as a personal computer (PC) or a vehicle-mounted device.
  • a portable device such as a laptop, a mobile phone, a personal digital assistant (PDA), a smartphone, a multimedia device, or the like
  • PC personal computer
  • Unstructured Data Storage Network Function (UDSF), Structured Data Storage Network Function (SDSF), Network Exposure Function (NEF) ) And an NF Repository Function (NRF) are not shown, but all NFs shown in this figure may interoperate with UDSF, NEF, and NRF as needed.
  • UDSF Unstructured Data Storage Network Function
  • SDSF Structured Data Storage Network Function
  • NEF Network Exposure Function
  • NRF NF Repository Function
  • NEF is provided by 3GPP network functions, for example, for 3rd party, internal exposure / re-exposure, application function, edge computing It provides a means to securely expose services and capabilities.
  • the NEF receives information (based on the exposed capability (s) of the other network function (s)) from the other network function (s).
  • the NEF may store the received information as structured data using a standardized interface to the data storage network function. The stored information is re-exposed to other network function (s) and application function (s) by the NEF and may be used for other purposes such as analysis.
  • NRF supports service discovery. Receives an NF discovery request from an NF instance and provides the NF instance with information about the found NF instance. It also maintains the available NF instances and the services they support.
  • -SDSF is an optional feature to support the ability to store and retrieve information as structured data by any NEF.
  • -UDSF is an optional feature to support the ability to store and retrieve information as unstructured data by any NF.
  • the node and the node in charge of wireless transmission / reception are gNBs and perform the same role as the eNB in EPS.
  • the terminal When the terminal is simultaneously connected to the 3GPP connection and the non-3GPP connection, the terminal receives a service through one AMF.
  • the terminal In the case of accessing through a non-3GPP access and in the case of accessing through a 3GPP access, one may be connected to the same UPF, but it is not necessarily required, and may be connected to a plurality of different UPFs.
  • the AMF managing the 3GPP connection is located in the VPLMN and the non-3GPP.
  • the AMF managing the connection can be located in the HPLMN.
  • the non-3GPP access network is connected to the 5G core network via N3IWK / N3IWF.
  • the N3IWK / N3IWF interfaces 5G core network control plane functions and user plane functions, respectively, via the N2 and N3 interfaces.
  • a representative example of a non-3GPP connection referred to herein may be a WLAN connection.
  • the UE may simultaneously access two (ie, local and central) data networks using multiple PDU sessions.
  • two SMFs may be selected for different PDU sessions.
  • each SMF may have the ability to control both the local UPF and the centralized UPF in the PDU session. It can be activated independently for each PDU session.
  • the UE may simultaneously access two (ie, local and central) data networks provided within a single PDU session.
  • a conceptual link connecting NFs in a 5G system is defined as a reference point.
  • the following illustrates reference points included in the 5G system architecture represented in this figure.
  • N1 reference point between UE and AMF
  • N2 reference point between (R) AN and AMF
  • N3 reference point between (R) AN and UPF
  • N6 reference point between UPF and data network
  • N24 reference point between PCF in visited network and PCF in home network
  • N8 reference point between UDM and AMF
  • N10 reference point between UDM and SMF
  • N11 reference point between AMF and SMF
  • N12 reference point between AMF and AUSF
  • N13 reference point between UDM and Authentication Server function (AUSF)
  • N15 reference point between PCF and AMF in non-roaming scenario, reference point between PCF and AMF in visited network in roaming scenario
  • N16 reference point between two SMFs (in a roaming scenario, a reference point between an SMF in a visited network and an SMF in a home network)
  • N18 reference point between any NF and UDSF
  • N19 reference point between NEF and SDSF
  • FIG. 2 is a diagram illustrating a wireless protocol stack to which the present invention can be applied.
  • FIG. 2 (a) illustrates the air interface user plane protocol stack between the UE and the gNB
  • FIG. 2 (b) illustrates the air interface control plane protocol stack between the UE and the gNB.
  • the control plane means a path through which control messages used by the UE and the network to manage a call are transmitted.
  • the user plane refers to a path through which data generated at an application layer, for example, voice data or Internet packet data, is transmitted.
  • a user plane protocol stack may be divided into a first layer (Layer 1) (ie, a physical layer (PHY) layer) and a second layer (Layer 2).
  • Layer 1 ie, a physical layer (PHY) layer
  • Layer 2 a second layer
  • the control plane protocol stack includes a first layer (ie, PHY layer), a second layer, and a third layer (ie, radio resource control (RRC) layer), It may be divided into a non-access stratum (NAS) layer.
  • a first layer ie, PHY layer
  • a second layer ie, a third layer
  • RRC radio resource control
  • NAS non-access stratum
  • the second layer includes a medium access control (MAC) sublayer, a radio link control (RLC) sublayer, a packet data convergence protocol (PDC) sublayer, a service data adaptation protocol ( SDAP: Service Data Adaptation Protocol (SDAP) sublayer (in case of user plane).
  • MAC medium access control
  • RLC radio link control
  • PDC packet data convergence protocol
  • SDAP Service Data Adaptation Protocol
  • Radio bearers are classified into two groups: a data radio bearer (DRB) for user plane data and a signaling radio bearer (SRB) for control plane data.
  • DRB data radio bearer
  • SRB signaling radio bearer
  • the first layer provides an information transfer service to a higher layer by using a physical channel.
  • the physical layer is connected to a MAC sublayer located at a higher level through a transport channel, and data is transmitted between the MAC sublayer and the PHY layer through the transport channel.
  • Transport channels are classified according to how and with what characteristics data is transmitted over the air interface.
  • data is transmitted between different physical layers through a physical channel between a PHY layer of a transmitter and a PHY layer of a receiver.
  • the MAC sublayer includes a mapping between a logical channel and a transport channel; Multiplexing / demultiplexing of MAC Service Data Units (SDUs) belonging to one or different logical channels to / from a transport block (TB) delivered to / from the PHY layer via the transport channel; Reporting scheduling information; Error correction through hybrid automatic repeat request (HARQ); Priority handling between UEs using dynamic scheduling; Priority handling between logical channels of one UE using logical channel priority; Padding is performed.
  • SDUs Service Data Units
  • TB transport block
  • HARQ hybrid automatic repeat request
  • Each logical channel type defines what type of information is conveyed.
  • Logical channels are classified into two groups: Control Channel and Traffic Channel.
  • control channel is used to convey only control plane information and is as follows.
  • BCCH Broadcast Control Channel
  • PCCH Paging Control Channel
  • CCCH Common Control Channel
  • DCCH Dedicated Control Channel
  • the traffic channel is used to use only user plane information:
  • DTCH Dedicated Traffic Channel
  • connection between a logical channel and a transport channel is as follows.
  • BCCH may be mapped to BCH.
  • BCCH may be mapped to the DL-SCH.
  • PCCH may be mapped to PCH.
  • CCCH may be mapped to the DL-SCH.
  • DCCH may be mapped to DL-SCH.
  • DTCH may be mapped to the DL-SCH.
  • CCCH may be mapped to UL-SCH.
  • DCCH may be mapped to UL-SCH.
  • DTCH may be mapped to UL-SCH.
  • the RLC sublayer supports three transmission modes: transparent mode (TM), unacknowledged mode (UM), and acknowledgment mode (AM).
  • TM transparent mode
  • UM unacknowledged mode
  • AM acknowledgment mode
  • the RLC configuration may be applied for each logical channel.
  • TM or AM mode is used for SRB, while UM or AM mode is used for DRB.
  • the RLC sublayer is a delivery of higher layer PDUs; Sequence numbering independent of PDCP; Error correction through automatic repeat request (ARQ); Segmentation and re-segmentation; Reassembly of SDUs; RLC SDU discard; RLC re-establishment is performed.
  • PDCP sublayer for user plane includes sequence numbering; Header compression and decompression (only for Robust Header Compression (RoHC)); User data delivery; Reordering and duplicate detection (if delivery to a layer higher than PDCP is required); PDCP PDU routing (for split bearer); Retransmission of PDCP SDUs; Ciphering and deciphering; Discarding PDCP SDUs; PDCP re-establishment and data recovery for RLC AM; Perform replication of PDCP PDUs.
  • Header compression and decompression only for Robust Header Compression (RoHC)
  • User data delivery Reordering and duplicate detection (if delivery to a layer higher than PDCP is required)
  • PDCP PDU routing for split bearer
  • Retransmission of PDCP SDUs Ciphering and deciphering
  • Discarding PDCP SDUs PDCP re-establishment and data recovery for RLC AM
  • Perform replication of PDCP PDUs
  • the PDCP sublayer for the control plane additionally includes sequence numbering; Ciphering, decryption, and integrity protection; Control plane data transfer; Replication detection; Perform replication of PDCP PDUs.
  • Replication in PDCP involves sending the same PDCP PDU (s) twice. One is delivered to the original RLC entity, the second to an additional RLC entity. At this time, the original PDCP PDU and the corresponding copy are not transmitted in the same transport block.
  • Two different logical channels may belong to the same MAC entity (for CA) or may belong to different MAC entities (for DC). In the former case, logical channel mapping restrictions are used to ensure that the original PDCP PDU and its copy are not transmitted in the same transport block.
  • the SDAP sublayer performs i) mapping between QoS flows and data radio bearers, ii) QoS flow identifier (ID) marking in downlink and uplink packets.
  • a single protocol entity of SDAP is configured for each individual PDU session.
  • two SDAP entities may be configured in the case of dual connectivity (DC).
  • DC dual connectivity
  • the RRC sublayer is a broadcast of system information related to an access stratum (AS) and a non-access stratum (NAS); Paging initiated by 5GC or NG-RAN; Establishing, maintaining, and releasing RRC connections between the UE and the NG-RAN (in addition, modifying and releasing carrier aggregation), and additionally, dual connectivity between the E-UTRAN and the NR or within the NR (Dual).
  • AS access stratum
  • NAS non-access stratum
  • 5GC access stratum
  • NG-RAN non-access stratum
  • Security functions including key management; Establishment, establishment, maintenance, and release of SRB (s) and DRB (s); Handover and context transfer; Control of UE cell selection and disaster recovery and cell selection / reselection; Mobility functionality including inter-RAT mobility; QoS management functions, UE measurement reporting and report control; Detection of radio link failures and recovery from radio link failures; NAS message delivery from NAS to UE and NAS message delivery from UE to NAS are performed.
  • FIG. 3 is a diagram illustrating a method of providing LADN information according to an embodiment of the present invention.
  • the terminal may perform a registration procedure by sending a registration request message to the AMF.
  • the AMF may be an AMF in which the DNN1 to which the terminal is subscribed is set.
  • the DNN subscription information of the terminal may be provided / configured to the AMF by the UDM.
  • the AMF may transmit a registration approval message.
  • the LADN information may be included in the registration approval message and transmitted.
  • the LADN information may include a LADN service area (that is, an intersection area between the LADN service area and the recently registered area) and / or the LADN DNN where the LADN service is provided.
  • the AMF may provide the LADN information to the terminal through a UE configuration update message / procedure.
  • FIG. 4 is a diagram illustrating a method of operating AMF for reporting whether a UE is located in a LADN service area according to an embodiment of the present invention.
  • the SMF may subscribe to the UE mobility event notification for the LADN DNN.
  • the AMF may notify the SMF of "UE Mobility Event Notification” if the UE is located in the LADN service area.
  • the AMF may optionally notify the SMF of specific location information of the terminal.
  • the AMF may query / request the NG-RAN whether the UE exists at the UE location or region of interest.
  • the NG-RAN may transmit, to the AMF, whether the UE exists in the region of interest and / or the current UE location information (or recently known UE location information with a time stamp) according to the inquiry / request.
  • the UE may transmit the location information of the UE, which has been set / stored in the AMF, directly to the SMF without such a request.
  • FIG. 5 is a diagram illustrating an AMF operation method for determining whether a UE is located in an area of interest according to an embodiment of the present invention.
  • the AMF can determine whether the UE is located in the region of interest ('IN', 'OUT' or 'UNKOWN') as follows:
  • the UE is located in a registration area included in the region of interest.
  • the UE is located outside the region of interest but the region of interest is located within an available registration area, and the UE is in CM-CONNECTED state; or
  • the UE is located in a registration area for which the region of interest is not valid.
  • the UE is located within a valid area of interest, the area of interest does not include the entire area of registration, and the UE is in CM-IDLE state.
  • the AMF may transmit a Namf_EventExposure_Notify message to the SMF.
  • LADN service area is a set of tracking areas.
  • LADN is a service provided by the serving PLMN of the UE:
  • LADN service only applies to 3GPP access, not Home Routed.
  • -LADN DNNs require an explicit subscription to this DNN or a subscription to a wildcard DNN.
  • Whether the DNN corresponds to a LADN service is an attribute of the DNN.
  • the UE is configured to know whether the DNN is a LADN DNN.
  • LADN information (ie, LADN service area information and / or LADN DNN) is set in units of DNs in the AMF (ie, for each other UE accessing the same LADN).
  • the established LADN service area is independent of other elements (eg, UE's registration area or UE subscription).
  • AMF does not need to receive any LADN information for the DNN.
  • the LADN information is provided to the UE by the AMF during the registration procedure or the UE configuration update procedure.
  • the corresponding LADN service area information includes a set of tracking areas belonging to the UE's current registration area (ie, the intersection of the LADN service area and the current registration area).
  • AMF does not create a registration area according to the availability of LADN.
  • the LADN service area may include a TA (s) outside the registration area of the UE or an external area served by the AMF
  • the LADN service area information transmitted to the UE by the AMF is only a subset of the entire LADN service area. It may include.
  • the AMF receives the UE from the local configuration regarding the LADN (eg, via operations, administration and management (OAM)), the UE location and the UDM regarding the subscribed DNN. Based on the subscription information, the UE may provide LADN information about the LADN available to the UE in the corresponding registration area in the registration approval message. During the subsequent registration update procedure, if the network does not provide LADN information for the DNN, the UE deletes any LADN information for that DNN.
  • OAM operations, administration and management
  • the AMF must update the LADN information to the UE through the UE configuration update / registration procedure.
  • the UE Based on the LADN information in the UE, the UE takes the following actions:
  • the UE When the UE is outside the LADN service area, the UE:
  • the UE When the UE is in the LADN service area, the UE:
  • a request may be made to activate an UP connection of an existing PDU session to a LADN DNN.
  • the SMF supporting the DNN is configured to determine whether the DNN is a LADN DNN.
  • the SMF may subscribe to "UE mobility event notification" to provide the LAMF DNN to the AMF to report UE presence in the region of interest.
  • the SMF Based on the notification of the UE presence in the LADN service area (ie IN, OUT, UNKNOWN) notified by the AMF, the SMF takes the following actions based on the operator's policy:
  • the SMF shall:
  • the SMF may release the PDU session later.
  • the SMF When the SMF receives downlink data or data notification from the UPF, it triggers a network trigger service request procedure for the LADN PDU session to activate the UP connection.
  • the SMF may:
  • the SMF When the SMF receives downlink data or data notification from the UPF, it triggers a network trigger service request procedure for the LADN PDU session to activate the UP connection.
  • LADN information is previously set in the AMF providing the LADN service. That is, the service provider may set / update information about the LADN service in the AMF through OAM.
  • this configuration / update method is not suitable in scenarios in which a very large number of LADN services are provided, particularly in a scenario in which services are dynamically set or changed.
  • the operator's OAM scheme has a high possibility of unpredictable failure, it is necessary to change the setting of the LADN information according to a previously coordinated and defined mechanism.
  • the present specification proposes a flexible and dynamic configuration mechanism of LADN information.
  • the present invention will be described below in individual embodiments for convenience of description, but is not limited thereto.
  • the present invention may be composed of a combination of one or more of the embodiments proposed below.
  • FIG. 6 illustrates a problem scenario in which the present invention may be applied.
  • the LADN service supported by the AMF in a specific region is previously set in the AMF.
  • a scenario may be assumed in which the serviced area may be activated / deactivated according to a specific date / period. That is, there may occur a case where the (LADN) service area is changed and the LADN service related information needs to be updated.
  • the present invention proposes a method of using a network control mechanism other than the OAM method in preparation for such a case.
  • LADN service areas such as foot trucks / small goods stalls
  • the change cycle is not a daily / year unit but a scenario in which the LADN service area is changed in time units within one day. For example, a food truck may wish to provide service in area A in the morning and in area B in the afternoon, in which case the LADN service area may change frequently.
  • FIG. 8 is a flowchart illustrating a dynamic / flexible update method of LADN information according to an embodiment of the present invention.
  • at least one step may be deleted or a new step may be inserted in the flowchart.
  • a detailed description of the terminal operation in this flowchart is described using reference numerals of FIG. 22.
  • the UE displays, on the display unit Y151, a setting screen for setting whether the user allows the LADN connection of the UE Y100 (or whether the user wants the LADN connection). I can display it. And / or, the UE Y100 may receive input from the user through the user input unit Y173 in the configuration screen whether or not to allow the LADN connection of the UE Y100 (or whether the user wants the LADN connection).
  • the display unit Y151 is implemented as a touch screen and functions as the user input unit 173 and provides an output interface between the mobile terminal Y100 and the user, the display unit Y151 touches the setting screen.
  • the user may receive an input from the user whether the LADN connection of the UE is allowed (or whether the LADN connection is desired).
  • the UE Y100 may store settings (that is, whether to allow LADN connection (or whether a LADN connection is desired)) received from a user. And / or the setting of whether to allow the LADN connection (or whether a LADN connection is desired) is then maintained until the user's input is changed (i.e., the permission is changed to disallowed or disallowed). Can be.
  • the input received as to whether to allow LADN access (or whether to want LADN access) is maintained, when the UE Y100 enters the LADN service area, whether to generate a PDU session of the LADN according to the setting Can be determined.
  • the UE (Y100) if the UE (Y100) is set as not allowed (or do not want LADN connection) of the UE (Y100) by the user, the UE creates a PDU session of the LADN even if entering the LADN service area The PDU session establishment procedure may not be performed.
  • the UE Y100 if the UE Y100 is configured to allow LADN access of the UE Y100 by the user (or desire LADN access), the UE Y100 creates a PDU session of the LADN when entering the LADN service area.
  • a PDU session establishment procedure may be performed.
  • the UE Y100 performs LADN information (LADN DNN (s)) provided by the serving network node / AMF and / or (LADN) service area information for each LADN DNN through an attach / registration procedure with the network node. ) Can be obtained.
  • LADN DNN s
  • LADN LADN DNN
  • the terminal Y100 may receive a service by establishing a general PDU session (eg, an IP Multimedia Services (IMS) PDU session for voice service and / or an Internet PDU session for Internet service).
  • IMS IP Multimedia Services
  • the UE Y100 displays a map on the display unit 151 (for example, displays a map with a constant radius based on the location of the user / terminal Y100), and uses a boundary line and / or color on the map.
  • LADN can be displayed so that the user can recognize the service area.
  • the terminal (Y100) is provided in the LADN of the selected region when at least some regions in the service area capable of LADN displayed on the map or a service area capable of LADN is selected by the user (for example, touch input). You can also display brief information about the service you are doing. Embodiments in this regard will be described in more detail below with reference to FIGS. 12 and 13.
  • the PCF which is a network node that sets / manages a provider policy, may select an appropriate AMF for which LADN service is to be set up based on input of LADN Data Network (DN) / AF (Application Function) and / or NEF.
  • the input delivered to the PCF may include (LADN) service region level information and / or period / time / cycle information (ie, period, time, and / or period information) in which the LADN service is provided.
  • the (LADN) service region level information may mean specific level information classified in advance according to the size of the LADN service region, and a detailed example will be described later.
  • the PCF may select AMF on its own (without input from another network node). For example, if you want to change the (LADN) service area flexibly in the case of a LADN service provided directly by an operator instead of a 3rd party service or when agreement information with a 3rd party is set in the PCF, The PCF should be set up so that a request to adjust / change the service range (LADN) can occur when an event occurs.
  • LADN service range
  • the territories in which third party service providers may request may be agreed upon in advance between the operator and the third party service provider.
  • the serving AMF for service provision can be mapped in the operator's network, and information for determining a service area to be provided to the UE Y100 needs to be set in advance in the network node.
  • the scope of the adjustable (LADN) service area may be pre-arranged between the operator and the 3rd party service provider at a predetermined level (eg, the above-described (LADN) service area level).
  • a predetermined level eg, the above-described (LADN) service area level.
  • the level (eg, mandatory, best effort, etc.) for requesting the UE Y100 to establish / set up a LADN PDU session may also be pre-arranged between the operator and the 3rd party service provider.
  • the NEF or DN / AF should pass input to all associated PCFs, each of which is responsible for each of the PCF operations described in this figure. Can be done.
  • the DN / AF may request the PCF for a service area for a particular LADN DNN.
  • the following level that is, (LADN) service area level
  • (LADN) service area level may be specified in advance for each LADN service providing area.
  • Level 1 Only near areas (e.g. old, east, etc.) within a first distance relative to where the UE (Y100) is located
  • Level 2 including a large area within a second distance (greater than the first distance) relative to where the UE Y100 is located (eg, hourly, etc.)
  • Level 3 Covers the entire PLMN region (e.g. national network that can be serviced by the operator)
  • Level 4 Including not only the entire PLMN, but also the equivalent PLMN (EPLMN) region with carrier roaming agreements (e.g. in Europe, the country is relatively small, so neighboring countries can provide the same network as EPLMN).
  • EPLMN equivalent PLMN
  • direct local information may be designated as in the following embodiment.
  • Seoul + Busan ie, service areas do not necessarily have to be contiguous, and can be used if they contain area information to distinguish the network topology
  • the PCF may select the appropriate AMF to provide the LADN service based on one or more of the following information (A. to C.) as follows:
  • a network topology that maps to the region level and / or region of the DN / AF requested (LADN) service (in this case, the AMFs included on the network topology may be selected) (related to the physical configuration of the network) );
  • LADN the current serving AMF of the terminal (Y100) (s) to provide the service and the pool containing the AMF (in this case, the serving AMF and other AMFs included in the pool can be selected together) ) (Related to the logical configuration of the network); And / or
  • the PCF may deliver LADN service information (eg, LADN DNN and / or service area information) to at least one selected AMF.
  • LADN service information eg, LADN DNN and / or service area information
  • the PCF may delegate to the AMF without directly managing the activation / deactivation of the LADN service.
  • period / time / cycle information for providing the LADN service and / or valid time information on the LADN information itself may be transmitted to the AMF together with the LADN service information.
  • 'valid time information' period / time / period information provided with a LADN service and / or valid time information on the LADN information itself.
  • the UE Y100 may display a pop-up window on the display unit Y151 so as to receive an approval for the actual connection to the corresponding LADN or the start of the service of the corresponding LADN.
  • the UE Y100 may display a notification message indicating that an actual connection to a LADN requesting setup / establishment of the corresponding PDU session or a service provided by the LADN is started.
  • the UE Y100 may also display information on a LADN (or a service provided by the LADN) requesting PDU session setup / establishment in a popup window. An embodiment thereof will be described later in detail with reference to FIGS. 14 to 17.
  • Steps 2 and 3 described above may be performed in units of DNNs, not in units of UE (Y100) / user.
  • the AMF may deliver updated LADN information (including DNN and / or updated service area information) to the UE Y100 / user subscribed / allowed to the LADN service.
  • the updated LADN information is illustrated to be delivered to the UE Y100 / user using a UE configuration update procedure, but the present invention is not limited thereto, and the UE may perform various procedures / messages (eg, a registration approval message). (Y100) / can be delivered to the user.
  • the PCF delegates activation / deactivation of the LADN service to the AMF in step 3 (ie, when it has received valid time information)
  • the AMF is responsible for the LADN service / information based on the valid time information received from the PCF. Validation check can be performed.
  • the AMF may transmit valid time information received from the PCF to the terminal Y100 together with the LADN information in order to maintain the consistency of the information.
  • the terminal Y100 starts / requires a procedure (ie, step 5) of requesting PDU session establishment / setup without interaction with a separate user based on preset LADN access permission information and / or updated LADN information. Can be done.
  • the terminal Y100 may provide / display a popup window for receiving an explicit permission / rejection input for actual access / service start from the user according to the operator's setting / policy. This explicit input may be received at the application layer through the LADN application provided for LADN service provision. If explicit permission input is performed from the user, step 5 can be started / performed.
  • the UE Upon receiving the PDU session setup / establishment request from the LADN DN / AF, the UE (Y100) may notify the notification window (D100) as shown in FIG. 14 or the notification message (E100) as shown in FIG. 15 to notify that a request for a specific LADN service has been received. Can be displayed on the display unit Y151.
  • the notification window D100 may display information about the LADN service (for example, the LADN service name, the provided LADN service (s), and billing information of the provided LADN service of the provided LADN).
  • a button D101 may be displayed for selecting from the user whether or not the corresponding LADN service is desired (ie, allowing the corresponding LADN service) in the notification window D100.
  • the button D101 may be an allow (or active) button and a block (or inactive) button as shown in FIG. 14, or may be a toggle button or a flip-flop button. This is merely an example and may be displayed as various types of buttons for user selection.
  • a hyperlink E101 may be displayed for selecting from the user whether he / she wants to receive the corresponding LADN service in the notification message E100 (ie, allows the corresponding LADN service).
  • the hyperlink E101 is selected (for example, when the hyperlink E101 is touched by the user), as described later in FIGS. 11 to 14, whether or not the user wants to receive the corresponding LADN service (ie It may have the same effect as clicking or toggling a button A102 or D101 for selecting a LADN service from a user.
  • the hyperlink E101 is selected (for example, when the hyperlink E101 is touched by the user)
  • a website for the corresponding LADN service is displayed on the display unit Y151, and the user selects the corresponding LADN service.
  • the UE Y100 may display a status screen (eg, an icon, a notification window, etc.) indicating whether the UE Y100 is currently accessing the LADN on the display unit Y151. If the PDN session creation request of the LADN is accepted by the network node, and the PDU session of the LADN is successfully created, the UE may display on the display unit Y151 a status screen (for example, an icon or a notification window) indicating that the LADN is connecting to the LADN. Can be. On the other hand, when the PDU session of the LADN is released, the UE may display a status screen (for example, an icon, a notification window, etc.) indicating that the UE is not connected to the LADN on the display unit Y151.
  • a status screen eg, an icon, a notification window, etc.
  • Icon F101 may be displayed to indicate that the call is being received).
  • the displayed icon F101 may have a different shape from the icon displayed when entering the service area where the LADN service is available as described above.
  • the display may be the same shape but different display forms. For example, the icon blinks when the user enters the LADN service area, but the icon may be displayed without blinking when accessing the LADN.
  • the shape, display form (for example, flickering), color, and the like of a status display may vary according to the number of LADNs to which the UE is connected.
  • the service name G101 for one or more LADN services provided by (Y100) may be displayed.
  • the LADN service name may be different from the LADN service name display that can be provided at the location of the UE (Y100) and color or display form.
  • the service name text for the LADN service that can be provided at the location of the UE Y100 is displayed blinking, but the service name text for the LADN service currently provided by the UE Y100 is displayed without blinking. May be At this time, each service name G101 may have a function of a toggle button.
  • the state of allowing / blocking of the corresponding LADN service may be switched.
  • the color of the service name text may be changed according to the allow / block state so that the user can check the allow / block state.
  • the service name text may be displayed in black in the allowed state, but the service name text may be displayed in gray in the blocked state.
  • an essential message such as a warning message or the like can be transmitted to the UE Y100 in the network (LADN DN / AF), and the essential message is displayed on the display unit 151 (for example, For example, as a pop-up message.
  • the UE When a request to create a PDU session by LADN is rejected by the network node and fails to establish / set up / establish / create a PDU session by LADN, the UE displays a notification window (or a notification message) indicating that the connection of the LADN has failed (or was rejected). Or the like can be displayed on the display unit Y151.
  • the AMF may notify the SMF that the UE Y100 has left the LADN service area.
  • the UE Y100 may display a notification window (or a notification message) for notifying the user that the user left the LADN service area on the display unit Y151.
  • the UE Y100 may know its own location and recognize the departure of the LADN service area, and then display a notification window (or a notification message) on the display unit Y151 for notifying the user.
  • the SMF may determine / determine whether to release or deactivate the LADN PDU session.
  • the network node In the case of 'release' of a LADN PDU session, the network node deletes / removes all the context of the corresponding LADN PDU session, but in case of 'disable', the network node does not delete / remove the context of the corresponding LADN PDU session. Will be recognized / recorded. Therefore, in case of 'deactivation', it is possible to activate a LADN PDU session which was deactivated when the UE Y100 enters the LADN service area again, but in case of 'deactivation' it is impossible.
  • the SMF may release or deactivate the LADN PDU session according to the determination / decision result, and may notify the UE Y100 that the LADN PDU session has been released or deactivated via the AMF.
  • the UE Y100 may display a notification window (or a notification message) for notifying the user of the LADN session on the display unit Y151.
  • the UE Y100 may distinguish between the LADN session release and the deactivation, and may display a notification window (or a notification message) on the display unit Y151 for notifying the user of these two cases in different forms. Alternatively, this may be displayed by changing the display color of a specific icon / symbol related to the LADN service or the related service window.
  • the UE Y100 notifies the user of this situation.
  • the notification window D100 as shown in FIG. 14 or the notification message E100 as shown in FIG. 15 may be displayed on the display unit Y151.
  • the UE Y100 may display contents of different messages in the notification window D100 or the notification message E100, or differently display a display color of a specific icon / symbol or a related service window related to the LADN service.
  • the icon or LADN service name for the corresponding LADN may disappear from the status window (G100) of FIG.
  • the icon or LADN service name for all LADNs may disappear.
  • the icon F101 for indicating that the LADN is accessing (or receiving LADN service) from the status bar of FIG. 16 may disappear or change color.
  • a NAS message indicating explicit PDU session release may not be delivered to the UE Y100, and the AS layer of the terminal Y100 may recognize only release of a specific radio duration resource. Accordingly, the NAS layer of the terminal Y100 reports an event related to a specific radio duration resource release from the AS layer, thereby implicitly recognizing the temporary deactivation of the LADN PDU session without an explicit NAS message. Even in this case, since the UE Y100 can distinguish between LADN session release and deactivation, a notification window (or a notification message) for notifying the user of two cases may be displayed on the display unit Y151 in different shapes or different colors. Can be.
  • 9 is a diagram illustrating the interaction between the UE and the SMF when the SMF decides to release the LADN PDU session.
  • an SM NAS message (ie, PDU session cancel command / message) indicating release of the (LADN) PDU session may be generated and transmitted to the UE.
  • a release reason may be included in the corresponding SM NAS message, and an example of a session management (SM) reason value included in the release reason may be as follows:
  • the existing SM reason value defined previously may be reused, or a new SM reason value #xx may be defined and used.
  • the SM reason value may be included as an SM reason information element (IE) of the SM NAS message indicating the release of the PDU session and transmitted to the UE.
  • IE SM reason information element
  • the SMF may transmit the SM NAS message to the AMF by encapsulating the SM NAS message in the N11 message, and the AMF may transmit the SM NAS message to the terminal via the base station.
  • the terminal may respond with an SM NAS message indicating that the release of the PDU session is completed to the SMF.
  • FIG. 10 is a diagram illustrating an interaction between the UE and the SMF when the SMF decides to deactivate a LADN PDU session.
  • an SM NAS message (ie, PDU session deactivation command / message) indicating deactivation of the (LADN) PDU session may be generated and transmitted to the UE.
  • the deactivation reason may be included in the corresponding SM NAS message, and an example of a session management (SM) reason value included in the deactivation reason may be as follows:
  • the existing SM reason value defined previously may be reused, or a new SM reason value #xx may be defined and used.
  • the SM reason value may be included as an SM reason information element (IE) of the SM NAS message indicating PDU session deactivation and transmitted to the UE.
  • IE SM reason information element
  • the SMF may transmit the SM NAS message to the AMF by encapsulating the SM NAS message in the N11 message, and the AMF may transmit the SM NAS message to the terminal via the base station.
  • the terminal may respond with an SM NAS message indicating that the deactivation of the PDU session is completed to the SMF.
  • the SMF may include a separate indication for indicating / notifying the release or deactivation of the LADN PDU session in the N11 message sent to the AMF.
  • the SMF may include a field for identifying the type of the SM NAS to encapsulate the SM NAS message in the N11 message and transmit the encapsulation to the AMF.
  • the AMF may include an indication received from the SMF in the header of the message sent to the base station. This is to explicitly inform the base station of the reason for requesting the release of the radio resource.
  • the base station may explicitly include specific radio resource release reason information / value in the RRC message and transmit the same to the UE:
  • the AS layer of the terminal identifies a specific reason for releasing radio resources through the received reason value and transmits the content to the NAS layer.
  • the AS reason value is not defined to be explicitly understood by the AS layer, but may be defined as simply different reason values that are distinguished.
  • the AS layer of the terminal does not know the meaning of the reason for receiving, but when receiving two distinct reason values, it can be transparently transferred to the upper NAS layer.
  • the NAS layer distinguishes why the radio resource is released based on information received in advance based on the received reason value.
  • the AMF may update the configuration information for each individual UE Y100 by tracking a location in units of individual UEs Y100.
  • the AMF can determine the location of the UE Y100 to which information should be transmitted / updated by utilizing a UE location determination method based on interaction with the NEF / UDM.
  • the serving AMF delivers the updated LADN information according to the embodiment of FIG. 8 to the UE Y100 / user subscribed / allowed to the LADN service to be provided.
  • the LADN service information of the UE is flexibly / dynamically updated in real time, an effect that the LADN service can be provided to the UE / user more efficiently / accurately.
  • FIG. 11 illustrates a display screen of the terminal.
  • a setting menu A001 for enabling / disabling (or allowing) a service is displayed on the display unit Y151.
  • a button A002 for selecting activation / deactivation from the user may be displayed.
  • the button A002 may be a toggle button or a flip-flop button as shown in FIG. 11, or may be an allow (or active) button and a block (or inactive) button. It may be displayed as various types of buttons for receiving a user's selection.
  • a setting menu for allowing (active) such as WiFi, Bluetooth, and mobile data may be displayed on the setting screen, and may be displayed in each setting menu such as WiFi, Bluetooth, and mobile data.
  • the button for selecting / input of activation / deactivation from the user may be displayed.
  • the setting screen of the terminal Y100 is shown in FIG. 11 (b). Can be moved / changed.
  • a setting screen A100 for setting whether to allow LADN access individually for each service (or whether LADN access is desired) may be displayed on the display unit 151.
  • One or more LADN service names (A101) are displayed on the setting screen (A100), and a button (A102) for selecting / inputting from the user whether or not to allow access to the corresponding LADN service for each LADN service is displayed on the display unit. (Y151).
  • the button A102 may be a toggle button or a flip-flop button as shown in FIG. 11, or may be an allow (or active) button and a block (or inactive) button. It is merely an example and may be displayed as various types of buttons for receiving a user's selection.
  • a preset LADN service in the mobile terminal Y100 may be displayed according to a policy of an operator to which the mobile terminal Y100 is subscribed.
  • the LADN service that the mobile terminal Y100 has experienced the service so far may be displayed.
  • an application App: application
  • the LADN service for the app stored in the mobile terminal 100 may be displayed.
  • the setting screen A100 may be configured for each App. In this case, the user may select / enter the permission / blocking of the access of the corresponding LADN service through the button A102 on the setting screen A100 for each app.
  • the LADN service provided by the serving network node / AMF may also be displayed on the configuration screen A100.
  • FIGS. 12 and 13 Illustrates a screen of the display unit 151 of the mobile terminal 100.
  • the UE Y100 may display a map on the display unit Y151 as shown in FIG. 12.
  • the UE Y100 may display the location of the user (ie, the location of the UE) B104 on the map.
  • the UE Y100 may display a map displayed on the display unit Y151 according to a user's touch and / or drag input on the display unit Y151 such as up, down, left, right, diagonal lines, and the like. You can move in various directions, and change the scale of the map large or small.
  • the UE Y100 may display the service area of LADN (ie, the area where LADN service is provided) B101, B102, and B103 on the map. At this time, the color of the service area may be displayed differently for each LADN service.
  • LADN the area where LADN service is provided
  • the UE Y100 displays a map on the display unit Y151 while allowing the user to individually access LADN for one or more LADN services available in the region where the UE Y100 is located.
  • a setting screen for setting whether or not (or whether a LADN connection is desired) may be displayed on the display unit Y151.
  • One or more LADN service names (B201) are displayed on the setting screen, and a button (B202) is displayed on the display unit (Y151) for receiving (selection) whether or not to allow access to the corresponding LADN service for each LADN service.
  • Button B202 may be a toggle button or a flip-flop button as shown in FIG. 12, or may be an allow (or active) button and a block (or inactive) button. It may also be displayed as various types of buttons for user selection.
  • the UE Y100 when the UE Y100 receives a service area of a specific LADN from a user (for example, receives a touch input from the user), information about the LADN service provided in the selected LADN service area (for example, the LADN service name, the provided LADN service (s), billing information of the provided LADN service of the provided LADN, etc.) C100 may be displayed.
  • a button C101 for selecting a user from a user who wants to receive LADN service provided in the selected LADN service area that is, whether to allow the corresponding LADN service
  • the button C101 may be an allow (or active) button and a block (or inactive) button as shown in FIG. 13, or may be a toggle button or a flip-flop button. This is merely an example and may be displayed as various types of buttons for user selection.
  • the UE Y100 When the UE Y100 enters a service area for which a specific LADN service is available as the UE Y100 moves, the UE Y100 enters a service area for a specific LADN service on the display unit Y151 as shown in FIG. 14.
  • Notification window (D100) indicating that it can be displayed.
  • the notification window D100 may display information about the LADN service (for example, the LADN service name, the provided LADN service (s), and billing information of the provided LADN service of the provided LADN).
  • a button D101 may be displayed for selecting from the user whether or not the corresponding LADN service is desired (ie, allowing the corresponding LADN service) in the notification window D100.
  • the button D101 may be an allow (or active) button and a block (or inactive) button as shown in FIG. 14, or may be a toggle button or a flip-flop button. It is merely an example and may be displayed as another type of button for user selection.
  • the UE (Y100) displays a specific LADN service on the display unit (Y151).
  • a short message service (SMS) notification message E100 indicating that a possible service area has been entered may be displayed. That is, the UE Y100 may display the notification message E100 received from the SMS server on the display unit Y151.
  • the notification message E100 may display information about the LADN service (for example, the LADN service name, the provided LADN service (s), and billing information of the provided LADN service of the provided LADN).
  • a hyperlink E101 may be displayed to be selected by a user whether the user wants to receive the corresponding LADN service in the notification message E100 (ie, permits the corresponding LADN service).
  • the hyperlink E101 is selected (for example, when the hyperlink E101 is touched by the user), a website for the corresponding LADN service service is displayed on the display unit Y151 and the user can select the corresponding LADN service. You can also choose whether to allow it on the website.
  • / or such a hyperlink E101 may not be displayed, and when a predetermined number (or predetermined on the notification message E100) is transmitted as a response message in response to the notification message E100, the user A message may be sent to the LADN service server indicating that the service permits the corresponding LADN service.
  • 16 and 17 illustrate screens of a display unit of a mobile terminal.
  • the display unit Y151 enters the LADN service area on the status bar.
  • An icon F101 may be displayed to indicate.
  • the displayed icon F101 may have a different shape from the icon displayed when the LADN is being connected (that is, receiving LADN service).
  • the displayed icon F101 may have the same shape but different display forms. For example, the icon blinks when the user enters the LADN service area, but the icon may be displayed without blinking when accessing the LADN.
  • the shape, display form (for example, blinking), color, and the like of a status display may vary depending on the number of LADNs that can be connected at the location of the UE Y100. You may.
  • each service name G101 may have a function of a toggle button. That is, each time a service name is selected, the state of allowing / blocking of the corresponding LADN service may be switched.
  • the color of the service name text may be changed according to the allow / block state so that the user may check the allow / block state. For example, the service name text may be displayed in black in the allowed state and in gray in the blocked state.
  • the LADN service that can be provided at the location of the UE Y100 may change, so the LADN icon or LADN service name G101 displayed in the status window G100 of FIG. Depending on the position of the UE (Y100) may be displayed or disappear in the status window (H100).
  • the UE Y100 displays a map on the display unit Y151 as described above (eg, displays a map with a constant radius based on the location of the user / terminal), and the boundary line on the map and / Alternatively, the service area may be marked so that the user can recognize the LADN-enabled service area by using color.
  • the UE Y100 selects at least some regions within the LADN-capable service area or a LADN-capable service area by the user (for example, through touch input), the LADN of the selected area may be used. It may also display brief information about the services provided by.
  • the UE (Y100) may display the above popup window.
  • the UE Y100 may be restricted by using information and / or precautions (eg, using such LADN service) for the LADN (or service provided by the LADN) requesting a PDU session setup / establishment in a popup window. Etc.) can be displayed together.
  • the UE Y100 may also display the billing information together in a popup window when connecting to the LADN requesting the PDU session setup / establishment (or starting the service provided by the LADN).
  • the charging information may be charging information limited to the corresponding service or may be comprehensive charging information linked to other services.
  • the UE Y100 may display, on the display unit Y151, information indicating / indicating an area where LADN service is available along with a map picture / display.
  • FIG. 18 is a flowchart illustrating a method of updating LADN information of a terminal according to an embodiment of the present invention.
  • the above-described embodiments and descriptions with respect to this flowchart may be applied in the same or similar manner, and redundant descriptions are omitted.
  • the terminal may display a setting screen for setting whether to allow access to the LADN service on the display unit (S1810).
  • the terminal may receive a setting regarding whether to allow access to the LADN service through the setting screen and store the input setting (S1820).
  • the terminal may be provided with LADN information for the LADN service (S1830).
  • the LADN information at this time may include LADN service area information and LADN DNN information.
  • the terminal may receive the updated LADN information from the AMF (S1840).
  • the updated LADN information may include updated LADN service area information and updated LADN DNN information.
  • the updated LADN information may be transmitted to the terminal through a registration procedure or a UE configuration update procedure.
  • the AMF at this time may be determined based on the updated LADN service area. More specifically, the AMF may be selected as an AMF located within the updated LADN service area. This AMF is selected by the PCF, and the updated LADN information can be received from the PCF.
  • the PCF may be a network node that receives from the NEF and / or DN / AF the coverage area range information of the LADN service and / or the provision time information of the LADN service.
  • the AMF may be selected in consideration of the LADN service providing region range and / or the serving AMF of the terminal.
  • the range of the LADN service providing area is further considered, as the AMF, an AMF located within the updated LADN service area and the LADN service providing area range may be selected.
  • the serving AMF of the terminal is further considered, as the AMF, at least one AMF logically associated with the serving AMF and the serving AMF may be selected.
  • the terminal may determine whether to establish a PDU session for receiving the LADN service for the terminal based on the stored configuration and / or the updated LADN information (S1850).
  • the case where the establishment of the PDU session is determined includes the case where the stored setting indicates the access permission to the LADN service, and / or the location of the terminal is inside the LADN service area included in the updated LADN service area information. can do.
  • the stored setting does not indicate permission to access the LADN service, and / or the location of the terminal outside the LADN service area included in the updated LADN service area information ( outside) may be included.
  • the UE may establish a PDU session based on the updated LADN information, and receive the LADN service through the established PDU session.
  • the terminal may display an indicator indicating that the terminal is currently accessing the LADN service on the display unit.
  • Such an indicator may correspond to an icon, a notification window, a message, and / or a pop-up window of a predefined state, color and / or shape to indicate that the LADN service is being accessed.
  • the indicator may be displayed in the status bar to inform the user of the current setting status of the terminal.
  • the UE may receive information indicating release or deactivation of the PDU session established through the AMF from the SMF.
  • the information indicating the release or deactivation of the established PDU session may be delivered to the terminal through a NAS message or an RRC message.
  • the information indicating release or deactivation of the established PDU session may include information on why the established PDU session is released or deactivated.
  • FIG. 19 is a block diagram of a terminal for updating LADN information according to an embodiment of the present invention.
  • the description of FIG. 18 may be applied in the same or similar manner with respect to the flowchart, and redundant description will be omitted.
  • the terminal 1900 receives a configuration / unit 1910 for displaying a setting screen for setting whether to allow access to the LADN service, a configuration / unit 1920 for receiving settings and storing the input settings, and receiving LADN information.
  • components / units of the terminal 1900 may be components / units configured to perform steps S1810 to S1850 of FIG. 18, respectively.
  • Each component / unit may be configured by hardware components / components, and may correspond to at least one component / unit or a combination thereof described below with reference to FIGS. 20 to 22.
  • FIG. 20 illustrates a block diagram of a communication device according to an embodiment of the present invention.
  • a wireless communication system includes a network node 2010 and a plurality of terminals (UEs) 2020.
  • UEs terminals
  • the network node 2010 includes a processor 2011, a memory 2012, and a communication module 2013.
  • the processor 2011 may implement the functions, processes, embodiments, and / or methods proposed above, and may be described in the present specification as the network node 2010 for convenience of description. Layers of the wired / wireless interface protocol may be implemented by the processor 2011.
  • the memory 2012 is connected to the processor 2011 and stores various information for driving the processor 2011.
  • the communication module 2013 is connected to the processor 2011 and transmits and / or receives a wired / wireless signal.
  • a base station, an MME, an HSS, an SGW, a PGW, an application server, and the like may correspond thereto.
  • the communication module 2013 may include a radio frequency unit (RF) for transmitting / receiving a radio signal.
  • RF radio frequency unit
  • the terminal 2020 includes a processor 2021, a memory 2022, and a communication module (or RF unit) 2023.
  • the processor 2021 may implement the functions, processes, embodiments, and / or methods proposed above, and may be described with the terminal 2020 for convenience of description. Layers of the air interface protocol may be implemented by the processor 2021.
  • the memory 2022 is connected to the processor 2021 and stores various information for driving the processor 2021.
  • the communication module 2023 is connected to the processor 2021 to transmit and / or receive a radio signal.
  • the memories 2012 and 2022 may be inside or outside the processors 2011 and 2021, and may be connected to the processors 2011 and 2021 by various well-known means.
  • the network node 2010 (when the base station) and / or the terminal 2020 may have a single antenna or multiple antennas.
  • FIG. 21 illustrates a block diagram of a communication device according to an embodiment of the present invention.
  • FIG. 21 is a diagram illustrating the terminal of FIG. 20 in more detail.
  • a terminal may include a processor (or a digital signal processor (DSP) 2110, an RF module (or RF unit) 2135, and a power management module 2105). ), Antenna 2140, battery 2155, display 2115, keypad 2120, memory 2130, SIM card Subscriber Identification Module card) 2125 (this configuration is optional), a speaker 2145, and a microphone 2150.
  • the terminal may also include a single antenna or multiple antennas. Can be.
  • the processor 2110 implements the functions, processes, and / or methods proposed above.
  • the layer of the air interface protocol may be implemented by the processor 2110.
  • the memory 2130 is connected to the processor 2110 and stores information related to the operation of the processor 2110.
  • the memory 2130 may be inside or outside the processor 2110 and may be connected to the processor 2110 by various well-known means.
  • the user enters command information such as a telephone number, for example, by pressing (or touching) a button on the keypad 2120 or by voice activation using the microphone 2150.
  • the processor 2110 receives the command information, processes the telephone number, and performs a proper function. Operational data may be extracted from the SIM card 2125 or the memory 2130. In addition, the processor 2110 may display command information or driving information on the display 2115 for the user to recognize and for convenience.
  • the RF module 2135 is connected to the processor 2110 to transmit and / or receive an RF signal.
  • the processor 2110 passes command information to the RF module 2135 to transmit, for example, a radio signal constituting voice communication data to initiate communication.
  • the RF module 2135 consists of a receiver and a transmitter for receiving and transmitting a radio signal.
  • the antenna 2140 functions to transmit and receive radio signals.
  • the RF module 2135 may forward the signal and convert the signal to baseband for processing by the processor 2110.
  • the processed signal may be converted into audible or readable information output through the speaker 2145.
  • the mobile terminal (or terminal, UE) described in the present specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, Slate PCs, tablet PCs, ultrabooks, wearable devices, such as smartwatches, glass glasses, head mounted displays )) May be included. Furthermore, it may be used for controlling at least one device in an IoT (Internet of Things) environment or a smart greenhouse.
  • IoT Internet of Things
  • 22 is a block diagram illustrating a mobile terminal according to the present invention.
  • the mobile terminal Y100 is a transceiver Y110, a processor Y120, a memory Y130, a sensing unit Y140, an output unit Y150, an interface unit Y160, an input unit Y170, and a power supply unit Y190. And the like.
  • the components shown in this figure are not essential to implementing a mobile terminal, so the mobile terminal described herein may have more or fewer components than those listed above.
  • the transceiver Y110 is one that enables wireless communication between the mobile terminal Y100 and the wireless communication system, between the mobile terminal Y100 and another mobile terminal Y100, or between the mobile terminal Y100 and an external server. It may include more than one module. In addition, the transceiver Y110 may include one or more modules for connecting the mobile terminal Y100 to one or more networks.
  • the transceiver Y110 may include at least one of a broadcast receiving module Y111, a mobile communication module Y112, a wireless internet module Y113, a short range communication module Y114, and a location information module Y115. .
  • the input unit Y170 may include a camera Y171 or an image input unit for inputting an image signal, a microphone Y172 for inputting an audio signal, an audio input unit, or a user input unit Y173 for receiving information from a user. , Touch keys, mechanical keys, and the like.
  • the voice data or the image data collected by the input unit Y170 may be analyzed and processed by the user's control command.
  • the sensing unit Y140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information.
  • the sensing unit Y140 may include a proximity sensor 1410, an illumination sensor 1420, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity.
  • Optical sensors e.g. cameras (see 1710)), microphones (see 1720), battery gauges, environmental sensors (e.g.
  • the mobile terminal disclosed herein may use a combination of information sensed by at least two or more of these sensors.
  • the output unit Y150 is used to generate an output related to sight, hearing, or tactile sense, and includes at least one of a display unit Y151, a sound output module Y152, a hap tip module Y153, and an optical output unit Y154. can do.
  • the display unit Y151 may form a layer structure or an integrated structure with the touch sensor, thereby implementing a touch screen.
  • the touch screen may function as a user input unit Y173 that provides an input interface between the mobile terminal Y100 and the user, and may also provide an output interface between the mobile terminal Y100 and the user.
  • the interface unit Y160 serves as a path to various types of external devices connected to the mobile terminal Y100.
  • the interface unit Y160 may connect a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input / output (I / O) port, a video input / output (I / O) port, and an earphone port.
  • the mobile terminal Y100 may perform appropriate control related to the connected external device in response to the connection of the external device to the interface unit Y160.
  • the memory Y130 stores data supporting various functions of the mobile terminal Y100.
  • the memory Y130 may store a plurality of application programs or applications that are driven in the mobile terminal Y100, data for operating the mobile terminal Y100, and instructions. At least some of these applications may be downloaded from an external server via wireless communication.
  • at least some of these application programs may exist on the mobile terminal Y100 from the time of shipment for basic functions (for example, a call forwarding, a calling function, a message receiving, and a calling function) of the mobile terminal Y100.
  • the application program may be stored in the memory Y130 and installed on the mobile terminal Y100 to be driven by the processor Y120 to perform an operation (or function) of the mobile terminal.
  • the processor Y120 generally controls the overall operation of the mobile terminal Y100 in addition to the operation related to the application program.
  • the processor Y120 may provide or process information or a function appropriate to a user by processing signals, data, information, etc. input or output through the above-described components, or by running an application program stored in the memory Y130.
  • the processor Y120 may control at least some of the components described with reference to FIG. 1 to drive an application program stored in the memory Y130. In addition, the processor Y120 may operate at least two or more of the components included in the mobile terminal Y100 in combination with each other to drive the application program.
  • the power supply unit Y190 receives power from an external power source and an internal power source under the control of the processor Y120 to supply power to each component included in the mobile terminal Y100.
  • the power supply unit Y190 includes a battery, and the battery may be a built-in battery or a replaceable battery.
  • At least some of the components may operate in cooperation with each other to implement an operation, control, or control method of the mobile terminal according to various embodiments described below.
  • the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory Y130.
  • the broadcast reception module Y111 of the transceiver Y110 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.
  • the broadcast channel may include a satellite channel and a terrestrial channel.
  • Two or more broadcast reception modules may be provided to the mobile terminal Y100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.
  • the mobile communication module Y112 may include technical standards or communication methods (for example, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), and EV).
  • GSM Global System for Mobile communication
  • CDMA Code Division Multi Access
  • CDMA2000 Code Division Multi Access 2000
  • EV Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), LTE-A It transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network constructed according to Long Term Evolution-Advanced (3GPP) and 3GPP NR (New Radio access technology).
  • 3GPP Long Term Evolution-Advanced
  • 3GPP NR New Radio access technology
  • the wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.
  • the wireless internet module Y113 refers to a module for wireless internet access and may be built in or external to the mobile terminal Y100.
  • the wireless internet module Y113 is configured to transmit and receive wireless signals in a communication network according to wireless internet technologies.
  • wireless Internet technologies include Wireless LAN (WLAN), Wireless-Fidelity (Wi-Fi), Wireless Fidelity (Wi-Fi) Direct, Digital Living Network Alliance (DLNA), Wireless Broadband (WiBro), and WiMAX (World).
  • the internet module Y113 transmits and receives data according to at least one wireless internet technology in a range including the internet technologies not listed above.
  • the module Y113 may be understood as a kind of the mobile communication module Y112.
  • the short range communication module (Y114) is for short range communication, and includes Bluetooth TM, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, NFC (Near Field Communication), at least one of Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus) technology can be used to support short-range communication.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wideband
  • ZigBee ZigBee
  • NFC Near Field Communication
  • Wi-Fi Wireless-Fidelity
  • Wi-Fi Direct Wireless USB (Wireless Universal Serial Bus) technology
  • Such a short-range communication module Y114 is provided between a mobile terminal Y100 and a wireless communication system, between a mobile terminal Y100 and another mobile terminal Y100, or through a wireless area network.
  • a wireless communication between a network in which another mobile terminal 1000 or an external server is located.
  • the other mobile terminal (Y100) is a wearable device (e.g., smartwatch, smart glasses, etc.) capable of exchanging (or interworking) data with the mobile terminal (Y100) according to the present invention.
  • a wearable device e.g., smartwatch, smart glasses, etc.
  • the short range communication module Y114 may detect (or recognize) a wearable device that can communicate with the mobile terminal Y100 around the mobile terminal Y100.
  • the processor Y120 may include at least a portion of data processed by the mobile terminal Y100 in the short-range communication module ( Y114) may be transmitted to the wearable device.
  • the user of the wearable device can use the data processed by the mobile terminal Y100 through the wearable device. For example, according to this, when the user receives a phone call from the mobile terminal Y100, the user performs a phone call through the wearable device, or if a message is received from the mobile terminal Y100, the user receives the received call through the wearable device. It is possible to check the message.
  • screen mirroring is performed with the local area TV or a display inside a vehicle through the short range communication module Y114, and a corresponding function is performed based on, for example, a MirrorLink or Miracast standard.
  • a corresponding function is performed based on, for example, a MirrorLink or Miracast standard.
  • the location information module Y115 is a module for obtaining the location (or current location) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module.
  • GPS Global Positioning System
  • Wi-Fi Wireless Fidelity
  • the mobile terminal may acquire the location of the mobile terminal using a signal transmitted from a GPS satellite.
  • the mobile terminal may acquire the location of the mobile terminal based on information of the wireless access point (AP) transmitting or receiving the Wi-Fi module and the wireless signal.
  • the location information module Y115 may perform any function of other modules of the transceiver Y110 in order to alternately or additionally obtain data regarding the location of the mobile terminal.
  • the location information module Y115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.
  • Each of the broadcast receiving module Y111, the mobile communication module Y112, the short range communication module Y114, and the location information module Y115 may be implemented as a separate module for performing a corresponding function, and the broadcast receiving module Y111, Functions corresponding to two or more of the mobile communication module Y112, the short range communication module Y114, and the location information module Y115 may be implemented by one module.
  • the input unit Y170 is for inputting image information (or signal), audio information (or signal), data, or information input from a user, and for inputting image information, the mobile terminal Y100 is one.
  • a plurality of cameras Y171 may be provided.
  • the camera Y171 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the shooting mode.
  • the processed image frame may be displayed on the display unit Y151 or stored in the memory Y130.
  • the plurality of cameras Y171 included in the mobile terminal Y100 may be arranged to form a matrix structure, and through the camera Y171 forming the matrix structure, various angles or focuses may be provided to the mobile terminal Y100.
  • the plurality of pieces of image information may be input.
  • the plurality of cameras Y171 may be arranged in a stereo structure to acquire a left image and a right image for implementing a stereoscopic image.
  • the microphone Y172 processes an external sound signal into electrical voice data.
  • the processed voice data may be variously used according to a function (or an application program being executed) performed by the mobile terminal Y100. Meanwhile, various noise reduction algorithms may be implemented in the microphone Y172 to remove noise generated while receiving an external sound signal.
  • the user input unit Y173 is for receiving information from a user. When information is input through the user input unit Y173, the processor Y120 may control an operation of the mobile terminal Y100 to correspond to the input information. .
  • the user input unit Y173 may be a mechanical input unit (or a mechanical key, for example, a button, a dome switch, a jog wheel, or the like located at the front or back or side of the mobile terminal Y100). Jog switch, etc.) and touch input means.
  • the touch input means may include a virtual key, a soft key, or a visual key displayed on the touch screen through a software process, or a portion other than the touch screen. It may be made of a touch key disposed in the.
  • the virtual key or the visual key may be displayed on the touch screen while having various forms, for example, graphic, text, icon, video, or the like. It can be made of a combination of.
  • the sensing unit Y140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a sensing signal corresponding thereto.
  • the processor Y120 may control driving or operation of the mobile terminal Y100 or perform data processing, function, or operation related to an application program installed in the mobile terminal Y100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit Y140 will be described in more detail.
  • the proximity sensor Y141 refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays.
  • the proximity sensor Y141 may be disposed in an inner region of the mobile terminal covered by the touch screen described above or near the touch screen.
  • the proximity sensor Y141 examples include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.
  • the proximity sensor Y141 may be configured to detect the proximity of the object by the change of the electric field according to the proximity of the conductive object.
  • the touch screen (or touch sensor) itself may be classified as a proximity sensor.
  • the proximity sensor Y141 may detect a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). have.
  • the processor Y120 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern detected through the proximity sensor Y141 as described above, and further, provides visual information corresponding to the processed data. It can be output on the touch screen. Furthermore, the processor Y120 may control the mobile terminal Y100 to process different operations or data (or information) according to whether the touch on the same point on the touch screen is a proximity touch or a touch touch. .
  • the touch sensor detects a touch (or touch input) applied to the touch screen (or display unit Y151) using at least one of various touch methods such as a resistive film type, a capacitive type, an infrared type, an ultrasonic type, and a magnetic field type. do.
  • the touch sensor may be configured to convert a change in pressure applied to a specific portion of the touch screen or capacitance generated at the specific portion into an electrical input signal.
  • the touch sensor may be configured to detect a position, an area, a pressure at the touch, a capacitance at the touch, and the like, when the touch object applying the touch on the touch screen is touched on the touch sensor.
  • the touch object is an object applying a touch to the touch sensor and may be, for example, a finger, a touch pen or a stylus pen, a pointer, or the like.
  • the touch controller processes the signal (s) and then sends the corresponding data to processor Y120.
  • the processor Y120 may determine which area of the display unit Y151 is touched.
  • the touch controller may be a separate component from the processor Y120 or may be the processor Y120 itself.
  • the processor Y120 may perform different control or may perform the same control according to the type of the touch object, which touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different control or the same control according to the type of touch object may be determined according to the operation state of the mobile terminal Y100 or an application program being executed.
  • the touch sensor and the proximity sensor described above may be independently or combined, and may be a short (or tap) touch, a long touch, a multi touch, a drag touch on a touch screen. ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc. A touch can be sensed.
  • the ultrasonic sensor may recognize location information of a sensing object using ultrasonic waves.
  • the processor Y120 may calculate the position of the wave generation source based on information detected by the optical sensor and the plurality of ultrasonic sensors.
  • the position of the wave source can be calculated using the property that the light is much faster than the ultrasonic wave, that is, the time that the light reaches the optical sensor is much faster than the time when the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generation source may be calculated using a time difference from the time when the ultrasonic wave reaches the light as the reference signal.
  • the camera Y171 which has been described as the configuration of the input unit Y170, includes at least one of a camera sensor (eg, CCD, CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.
  • a camera sensor eg, CCD, CMOS, etc.
  • a photo sensor or an image sensor
  • a laser sensor e.g., a laser sensor
  • the camera Y171 and the laser sensor may be combined with each other to detect a touch of a sensing object on a 3D stereoscopic image.
  • the photo sensor may be stacked on the display element, which is configured to scan the movement of the sensing object in proximity to the touch screen. More specifically, the photo sensor mounts a photo diode and a transistor (TR) in a row / column and scans contents mounted on the photo sensor by using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor calculates coordinates of the sensing object according to the amount of light change, and thus, the position information of the sensing object can be obtained.
  • TR transistor
  • the display unit Y151 displays (outputs) information processed by the mobile terminal Y100.
  • the display unit Y151 may display execution screen information of an application program driven by the mobile terminal Y100, or UI (User Interface) or GUI (Graphic User Interface) information according to the execution screen information. .
  • the display unit Y151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.
  • the stereoscopic display unit may be a three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), a projection method (holographic method).
  • the sound output module Y152 may output audio data received from the transceiver Y110 or stored in the memory Y130 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like.
  • the sound output module Y152 may also output a sound signal related to a function (for example, a call signal reception sound and a message reception sound) performed in the mobile terminal Y100.
  • the sound output module Y152 may include a receiver, a speaker, a buzzer, and the like.
  • the haptic module Y153 generates various tactile effects that a user can feel.
  • a representative example of the tactile effect generated by the haptic module Y153 may be vibration.
  • the intensity and pattern of vibration generated in the haptic module Y153 may be controlled by user selection or processor setting. For example, the haptic module Y153 may output different synthesized vibrations or sequentially output them.
  • the haptic module in addition to the vibration, the pin array vertical movement with respect to the contact skin surface, the blowing force or suction force of the air through the injection or inlet port, grazing to the skin surface, contact of the electrode (electrode), electrostatic force, etc.
  • Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.
  • the haptic module Y153 may not only deliver a tactile effect through direct contact, but also may allow a user to feel the tactile effect through a muscle sense such as a finger or an arm. Two or more haptic modules Y153 may be provided according to a configuration aspect of the mobile terminal Y100.
  • the light output unit Y154 outputs a signal for notifying occurrence of an event by using light of a light source of the mobile terminal Y100.
  • Examples of events generated in the mobile terminal Y100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, and information reception through an application.
  • the signal output from the light output unit Y154 is implemented as the mobile terminal emits light of a single color or a plurality of colors to the front or the rear.
  • the signal output may be terminated by the mobile terminal detecting the user's event confirmation.
  • the interface unit Y160 serves as a path with all external devices connected to the mobile terminal Y100.
  • the interface unit Y160 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal Y100, or transmits data inside the mobile terminal Y100 to an external device.
  • the port, an audio input / output (I / O) port, a video input / output (I / O) port, an earphone port, and the like may be included in the interface unit Y160.
  • the identification module is a chip that stores a variety of information for authenticating the usage rights of the mobile terminal (Y100), a user identification module (UIM), subscriber identity module (SIM), universal user authentication And a universal subscriber identity module (USIM).
  • a device equipped with an identification module (hereinafter referred to as an 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal Y100 through the interface unit Y160.
  • the interface unit Y160 may be a passage for supplying power from the cradle to the mobile terminal Y100 when the mobile terminal Y100 is connected to an external cradle, or inputted from the cradle by a user.
  • Various command signals may be a passage through which the mobile terminal Y100 is transmitted.
  • Various command signals or power input from the cradle may operate as signals for recognizing that the mobile terminal Y100 is correctly mounted on the cradle.
  • the memory Y130 may store a program for operating the processor Y120, and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.).
  • the memory Y130 may store data relating to various patterns of vibration and sound output when a touch input on the touch screen is performed.
  • the memory Y130 may be a flash memory type, a hard disk type, a solid state disk type, an SSD type, a silicon disk drive type, or a multimedia card micro type. ), Card-type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read It may include at least one type of storage medium of -only memory (PROM), programmable read-only memory (PROM), magnetic memory, magnetic disk and optical disk.
  • the mobile terminal Y100 may be operated in connection with a web storage that performs a storage function of the memory Y130 on the Internet.
  • the processor (Y120) controls the operation related to the application program, and generally the overall operation of the mobile terminal (Y100). For example, if the state of the mobile terminal satisfies a set condition, the processor Y120 may execute or release a lock state that restricts input of a user's control command to applications.
  • the processor Y120 may perform control and processing related to voice call, data communication, video call, or the like, or may perform pattern recognition processing for recognizing handwriting input or drawing input performed on a touch screen as text and images, respectively. Can be. Further, the processor Y120 may control any one or a plurality of components described above in order to implement various embodiments described below on the mobile terminal Y100 according to the present invention.
  • the power supply unit Y190 receives an external power source and an internal power source under the control of the processor Y120 to supply power for operation of each component.
  • the power supply unit Y190 includes a battery, and the battery may be a built-in battery configured to be rechargeable, and may be detachably coupled to the terminal body for charging.
  • the power supply unit Y190 may include a connection port, and the connection port may be configured as an example of the interface Y160 to which an external charger for supplying power for charging the battery is electrically connected.
  • the power supply unit Y190 may be configured to charge the battery in a wireless manner without using the connection port.
  • the power supply unit Y190 may use at least one of an inductive coupling based on a magnetic induction phenomenon or a magnetic resonance coupling based on an electromagnetic resonance phenomenon from an external wireless power transmitter. Power can be delivered.
  • various embodiments of the present disclosure may be implemented in a recording medium readable by a computer or a similar device using, for example, software, hardware, or a combination thereof.
  • the mobile terminal can be extended to a wearable device that can be worn on the body beyond the user mainly holding in the hand.
  • wearable devices include a smart watch, a smart glass, a head mounted display (HMD), and the like.
  • HMD head mounted display
  • the wearable device may be configured to exchange (or interlock) data with another mobile terminal Y100.
  • the short range communication module Y114 may detect (or recognize) a wearable device that can communicate around the mobile terminal Y100. Further, when the detected wearable device is a device authorized to communicate with the mobile terminal Y100, the processor Y120 may wear at least a portion of data processed by the mobile terminal Y100 through the short range communication module Y114. Can be sent to. Therefore, the user may use data processed by the mobile terminal Y100 through the wearable device. For example, when a call is received by the mobile terminal Y100, a phone call may be performed through the wearable device, or when the message is received by the mobile terminal Y100, the received message may be confirmed through the wearable device. .
  • the present invention described above can be embodied as computer readable codes on a medium in which a program is recorded.
  • the computer-readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include hard disk drives (HDDs), solid state disks (SSDs), silicon disk drives (SDDs), ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like. This also includes implementations in the form of carrier waves (eg, transmission over the Internet).
  • the computer may also include a processor Y120 of the terminal. Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.
  • each component or feature is to be considered optional unless stated otherwise.
  • Each component or feature may be embodied in a form that is not combined with other components or features. It is also possible to combine some of the components and / or features to form an embodiment of the invention.
  • the order of the operations described in the embodiments of the present invention may be changed. Some components or features of one embodiment may be included in another embodiment or may be replaced with corresponding components or features of another embodiment. It is obvious that the claims may be combined to form an embodiment by combining claims that do not have an explicit citation relationship in the claims or as new claims by post-application correction.
  • Embodiments according to the present invention may be implemented by various means, for example, hardware, firmware, software, or a combination thereof.
  • an embodiment of the present invention may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), FPGAs ( field programmable gate arrays), processors, controllers, microcontrollers, microprocessors, and the like.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • processors controllers, microcontrollers, microprocessors, and the like.
  • an embodiment of the present invention may be implemented in the form of a module, procedure, function, etc. that performs the functions or operations described above.
  • the software code may be stored in memory and driven by the processor.
  • the memory may be located inside or outside the processor, and may exchange data with the processor by various known means.
  • 'A and / or B' may mean at least one of A and / or B.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de mise à jour d'informations de LADN d'un terminal dans un système de communication sans fil comprenant les étapes suivantes : affichage d'une image de configuration pour configurer si un accès par le terminal à un service de LADN est permis ; réception, par l'intermédiaire de l'image de configuration, de l'entrée d'une configuration permettant de déterminer si l'accès au service de LADN est permis et stockage de la configuration entrée ; réception des informations de LADN pour le service de LADN ; réception des informations de LADN mises à jour à partir d'une AMF lorsque les informations de LADN sont mises à jour ; et détermination, en fonction de la configuration stockée et/ou des informations de LADN mises à jour, de la nécessité d'établir une session de PDU pour recevoir le service de LADN pour le terminal.
PCT/KR2019/001301 2018-05-11 2019-01-30 Procédé de mise à jour d'informations de ladn dans un système de communication sans fil et appareil associé Ceased WO2019216524A1 (fr)

Applications Claiming Priority (4)

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KR10-2018-0054387 2018-05-11
KR20180083659 2018-07-18
KR10-2018-0083659 2018-07-18

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US20170339609A1 (en) * 2016-05-17 2017-11-23 Lg Electronics Inc. Method and apparatus for determining pdu session identity in wireless communication system
KR20180021650A (ko) * 2016-08-22 2018-03-05 삼성전자주식회사 네트워크를 슬라이스로 구성하여 단말에게 서비스를 제공하는 방법 및 장치

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US20060013147A1 (en) * 2004-05-03 2006-01-19 Level 3 Communications, Inc. Registration redirect server
KR20110009382A (ko) * 2009-07-22 2011-01-28 삼성전자주식회사 무선 통신 시스템에서 이동 단말의 세션 전환 방법 및 그 시스템
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